rrecardo@WEBTV.NET writes:
<< double wrap aircraft screw clamps. >>

<<Are these also known as "lined" worm screw hose clamps? I get that
type from a local industrial supply house which also services the OTR
truck trade.?? >>

Exactly George.
They are primarily used for silicone hose where the single draw
stainless screw clamps would tear the hose up, and give an even pull all
the way around the any hose without ripping it up.

Good Call.